Print visibility info for external variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128887 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/visibility.ll b/test/CodeGen/X86/visibility.ll
index a8d2870..580c3dc 100644
--- a/test/CodeGen/X86/visibility.ll
+++ b/test/CodeGen/X86/visibility.ll
@@ -1,11 +1,14 @@
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s
 
+@zed = external hidden constant i32
+
 define hidden void @foo() nounwind {
 entry:
-  call void @bar()
+  call void @bar(i32* @zed)
   ret void
 }
 
-declare hidden void @bar()
+declare hidden void @bar(i32*)
 
+;CHECK: .hidden	zed
 ;CHECK: .hidden	bar